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    • 43. 发明授权
    • Polycarbonate composition having improved scratch resistance, and articles formed therefrom
    • 具有改进的耐刮擦性的聚碳酸酯组合物和由其形成的制品
    • US07700696B2
    • 2010-04-20
    • US11427102
    • 2006-06-28
    • Robert Dirk van de GrampelJan-Pleun LensDake Shen
    • Robert Dirk van de GrampelJan-Pleun LensDake Shen
    • C08L69/00
    • C08L69/00C08L69/005C08L2666/18
    • A thermoplastic composition comprises A) 25 to 95 parts by weight of a first polycarbonate consisting essentially of i) 25 to 100 mole percent of a first carbonate unit comprising an alkyl-substituted bisphenol carbonate unit, ii) 0 to 75 mole percent of a second carbonate unit where the first and second carbonate units are not identical, and the sum of the mole percentages of the first and second carbonate units in the first polycarbonate is 100 mole percent; B) 5 to 75 parts by weight of a polyester-polycarbonate where the molar ratio of carbonate unit to arylate ester unit is 95:5 to 10:90; and C) 0 to 65 parts by weight of a second polycarbonate, where the first polycarbonate and second polycarbonate are not identical, and the sum of the parts by weight of the first polycarbonate, the polyester-polycarbonate, and the second polycarbonate is 100 parts by weight.
    • 热塑性组合物包含A)25至95重量份的第一聚碳酸酯,其基本上由以下组成:i)25至100摩尔%的包含烷基取代的双酚碳酸酯单元的第一碳酸酯单元,ii)0至75摩尔%的第二 碳酸酯单元,其中第一和第二碳酸酯单元不相同,第一和第二碳酸酯单元在第一聚碳酸酯中的摩尔百分比之和为100摩尔%; B)5〜75重量份碳酸酯单元与芳基酯单元的摩尔比为95:5〜10:90的聚酯 - 聚碳酸酯; 和C)0至65重量份的第二聚碳酸酯,其中第一聚碳酸酯和第二聚碳酸酯不相同,并且第一聚碳酸酯,聚酯 - 聚碳酸酯和第二聚碳酸酯的重量份之和为100份 重量。
    • 47. 发明申请
    • POLYCARBONATE-POLYSILOXANE COPOLYMER COMPOSITIONS AND ARTICLES FORMED THEREFROM
    • 聚碳酸酯 - 聚硅氧烷共聚物组合物及其形成的制品
    • US20080081884A1
    • 2008-04-03
    • US11537056
    • 2006-09-29
    • Katherine GlasgowJan-Pleun LensBrian MullenVandita Pai-Paranjape
    • Katherine GlasgowJan-Pleun LensBrian MullenVandita Pai-Paranjape
    • C08F283/02
    • C08G77/448C08L83/10
    • A thermoplastic composition comprises a copolycarbonate comprising 25 to 100 mole percent of a first carbonate unit derived from a dihydroxy aromatic compound having the formula wherein Ra′ and Rb′ are C1-12 alkyl, T is a C5-16 cycloalkylene, a C5-16 cylcloalkylidene, a C1-5 alkylene, a C1-5 alkylidene, a C6-13 arylene, a C7-12 arylalkylene, C7-12 arylalkylidene, a C7-12 alkylarylene, or a C7-12 arylenealkyl, and r and s are each independently 1 to 4, and r and s are 1 to 4; and 0 to 75 mole percent of a second carbonate unit, wherein the first carbonate unit and second carbonate unit are not identical; a polysiloxane-polycarbonate copolymer comprising 0.15 to 30 weight percent of a polysiloxane block comprising siloxane units of the formula wherein E is on average of 4 to 60 units, and 70 to 99.85 weight percent of a third carbonate unit, wherein an article having a thickness of 3.2 mm and molded from the thermoplastic composition has a Dynatup total energy of greater than 50 Joules, as measured at a constant speed of 3.3 to 3.6 m/sec at 23° C. according to ASTM D3763-02. A method of making and articles prepared therefrom are also disclosed.
    • 热塑性组合物包含共聚碳酸酯,其包含25至100摩尔%的衍生自具有下式的二羟基芳族化合物的第一碳酸酯单元,其中R a a'和R b'均为C C 1-12烷基,T是C 5-16亚烷基,C 5-16亚烷基,C 1-5 亚烷基,C 1-5亚烷基,C 6-13亚芳基,C 7-12芳基亚烷基,C 1 -C 6亚烷基, C 7-12芳基亚烷基,C 7-12烷基亚芳基或C 7-12亚芳基烷基,r和s各自独立地为1至4个 ,r和s为1〜4; 和0至75摩尔%的第二碳酸酯单元,其中所述第一碳酸酯单元和第二碳酸酯单元不相同; 聚硅氧烷 - 聚碳酸酯共聚物,其包含0.15至30重量%的包含下式的硅氧烷单元的聚硅氧烷嵌段,其中E平均为4至60个单元,和70至99.85重量%的第三个碳酸酯单元,其中具有厚度 根据ASTM D3763-02,由热塑性组合物模塑的Dynatup总能量大于50焦耳,其在23℃下以3.3至3.6m /秒的恒定速度测量。 还公开了一种制备方法和由其制备的制品。